Hanger for electric lamps



3 Sheets-Sheet 1.

(N6 Model.)

W. s. WESTON. HANGER FOR ELECTRIC LAMPS.

No. 5615184. Patented June'Z, 1896.

ventor 30 Mam M 1 (No Model.) 3 ShetsSheet 2. W. S. WESTON.

HANGER PORBLBGTRIQ LAMPS.

Patented June 2, 1896.

Witnesses: lmvenfm" (No Model.) 3 Sheets-Sheet 3.

W. s. WESTON. HANGER FOR ELEGTRIO LAMPS.

No. 561,184. Patented June 2, 1896.

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NIT'ED STATES FFICE.

HANGER FOR ELECTRIC LAMPS.

GPECIFICATION forming part of Letters Patent No. 561,184, dated June 2, 1896.

Application filed March 4, 1895. Serial No. 540,421. (No model.)

To all whom, it may concern.-

Be it known that 1, WILLIAM .S. WEsToN, a citizen of the United States, residing in Etherly, in the county of Knox and State of Illinois, have invented a new and useful Improvement in Hangers for Electric Lamps, of which the following is a specification.

My invention relates to improvements i hangers for electric lamps.

The object of my invention is to provide an electric-lamp hanger of a simple and durable construction by means of which the lamp may be conveniently raised and lowered, as required, and whereby at the same time the continuity of the electric circuit through the hanger will be preserved.

My invention consists, in connection with a stationary frame and a rotating electriclamp-hanger drum mounted upon said frame, upon which drum the lamp-supporting and conductor or cu'rrent carryin g cable is wound, of a single continuous conductor-cable connected at one end to the lamp and at the other to the main circuit-wire or conductor, the intermediate portion of the cable being wound about the drum, said cable having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position to enable the drum to rotate, so that the circuit leads continuously through the hanger in one single and continuous conductor wire or cable extending from the lamp to the main circuit without joints or separate contact-pieces, and the cable being wound about the drum, part in one direction and part in the opposite direction, so that it will wind up or unwind from the drum at both ends or parts, as hereinafter more particularly specified in the claims.

It also consists in this combination, above mentioned, of a drum of two diameters or sizes-a large portion for the part of the cable connected with the lamp to wind upon, so that each turn of the drum will take up or pay out a considerable length of this part of the cable, and a portion of small diameter for the other or slack part of the cable to wind uponso that each turn of the drum will take up or pay out a comparatively short length of this slack, and thus make it unnecessary to employ a large amount of slack in the cable. The necessary amount of slack of the cable in said combination is further reduced by the" circumstance that the continuous revolution of the drum in one direction will, for example, unwind the slack in one direction and then wind the slack up in the opposite direction.

My invention also consists, in connection with the hanger-frame, of a drum for the cable, the drum or its shaft being mounted movably on the frame, and the drum or its shaft being furnished with one cooperating part of a locking device engaging or adapted to engage a corresponding cooperating part of a locking device on the frame, so that by the bodily movement of the drum or its shaft the drum may be locked from rotating on its axis or unlocked and permitted to rotate as required.

It also consists, in an electric-lamp hanger, in the combination,with a stationary supporting-frame provided with one cooperating part of a locking. device mounted thereon, of a' bodily movable rotating lamp supporting drum and mounted on said frame and provided with a cooperating part of a locking device adapted to be engaged with and disengaged from said corresponding part of the locking device on the frame by the bodily movement of the drum in respect to the frame, one of said cooperating parts of the locking device having a spring or yielding action to prevent injury by too suddenly stopping the rotation of the lamp-supporting drum.

My invention also consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown and described, and specified in the claims.

In the accompanying drawings, which form a part of this specification, Figure 1 is a front view of an electric-lamp hanger embodying my invention. 2 2 of Fig. 1. Fig. 3 is an end view looking from the right hand. Fig. 4 is a sectional view similar to Fig. 2, showing the effect produced when a strain is put on the hand-rope sufficient to balance the weight of the lamp. Fig. 5 is a detail view of the lamp-hanger shaft with the drum removed and showing a section of the hand-rope pulley along the line 5 5 of Fig. 6. Fig. 6 is an end view of the hand-rope pulley. Fig. 7 is an end view of one of the drums, showing the plate E with Fig. 2 is a section on the line hub e, whereby the drum is attached to the shaft. Figs. 8, 9, and 10 show a modification in which an equivalent or alternative means or method of locking the rotatable drum or drums in, on, or to the main supporting-frame is employed.

Similar letters of reference indicate like parts in all the figures.

In the drawings, A represents a eeilin g or hanger-board to which the hanger-frame 13 is attached. The hanger-frame 13 may be of any suitable construction, but preferably consists, as illustrated in the drawings, of two posts or brackets B B.

C is the lamp-supporting and current-eonducting cable, the same cable being preferably used both to support the weight of the lamp and also as the conductor to convey the electric current thereto.

D is the drum, about which the cable or the intermediate portion of the cable is wound. The drum has a portion (Z thereof made of much smaller diameter than the main portion 1). The slack portion 0 of the cable is wound about this small diameter d of the drum, while the main part of the continuous cable C (the end 0 of which leads to the lamp) is wound about the large diameter of the drum 1). The part c of the cable is wound around the drum in the opposite direction from the main portion of the cable, so that, as shown, for example, in Fig. 1, when the drum turns to lower the lamp it will unwind the end 0 of the cable to let the lamp down and will also unwind from the smaller diameter d of the drum the slack portion 0 of the cable. If the retation of the drum still continues, however, after the slack part c is completely unwound from the drum (Z, the further rotation of the drum will again wind the slack part c around the drum (Z, but now in the same direction as the main portion C of the cable is wound about the larger part of the drum, so that when the drum D is turned in the opposite direction to wind up thatend of the cable carrying the lamp it will at first unwind the slack 0 thus wound about the drum (Z and then, as the rotation of the drum D continues, wind said slack up again in form as shown in Fig. 1.

II is the shaft for the drum. The drum is preferably made of wood and seen red to the shaft II by disks E, furnished with hubs e.

F and F are the two cooperating parts of the locking device, the locking device consisting of two cooperating parts engaging each other. Each of these parts singly, while not a complete locking device in itself alone, is a locking device in the sense of being one of the cooperating parts of the complete device.

The drum 1) or its shaft ll is mounted or supported movably on the frame 13, and it is provided with a loekin g part, wheel, or device F, engaging a corresponding locking part or device F on the frame of the machine, so that when the drum or shaft is moved in one direction the two cooperating parts F F of the locking device will be disengaged and the drum or its shaft thus be permitted to rotate in order to lower or raise the lamp, and so that when moved in the opposite direction the two parts of said locking device will ongage each other and thus stop the rotation of the drum and hold the lamp in position. The locking device F F has a spring or yielding construction or mounting in respect to one or the other of its two cooperatin g parts, so as to permit of a limited rotating movement of the drum after the two parts of the locking device begin to engage, in order to prevent injury to the lamp or hanger by too suddenly stopping the rotation of: the drum. The cooperating part F of the lockin g device is made in aseparate piece from the drum and is preferably secured to the shaft of the drum rather than directly to the drum. This part F of the locking device is made in the form of a wheel, having teeth f, and which is fixed to the shaft It so as to turn with it, and the yielding co-operating part F of the locking device consists, preferably, oi. a simple bar mounted on spring-arms b, secured to the frame l Another good form for this part F for the locking device is that shown in the modification illustrated at Figs. 8, 0, and 10, in which the locking part or wheel F F is made with a smooth periphery and the corresponding part F F on the frame is made in the form of a band to act frictionally and thus give the necessary gradual or yielding stoppage of the drum after the parts of the locking device begin to engage.

The drum 1) or its shaft llis mounted movablyin the frame in any suitable manner, so as to permit the cooperating part F of the locking device to be moved into and out of engagement with the cotiperatin g part F of the locking device. This, however, is done by making the bearings I) of the shaft ll movable. This bearing 1) is movably supported on the frame B in any convenient manner, but preferably by connecting it to or making it integral with an arm I), pivoted at I) to the frame B and held normally in position. by a spring I. The spring Z is held in position. by a belt a, furnished with a nut n for adjusting the tension of the spring. The spring Z thus holds the cooperatin g part F of the locking device on the drum-shaft movabl y in engagement with the cooperating part F of the locking device on the frame and at the same time permits the part F to be moved out of engagement with the part F. The drum and its shaft is moved to disengage the two parts of the locking device F F by a hand-rope R, which is normally wound on the hand-rope pulley 1?, threaded t-o revolve on the shaft ll for the purpose of bringing its clutch part 1) into engagement with the corresponding elutch part f on the sleeve on the hub of the locking-wheel F. To cause this hand-rope pulley 1 to wind up the handrope out oi. the way, it is provided with a tor- ITO sional spring 8, one endof which is secured to the hand-rope pulley at r and the other end to the wheel F at 0 0. The drum D has a hole or passage leading diagonally through the head of the drum from the larger diameter to the smaller diameter to receive the cable and for convenience of attaching the cable to the drum, so that the end or part c, to which the lamp is attached, may be conveniently wound in one direction around the drum, and the opposite end a may be wound in the opposite direction around the smaller portion d of the drum. The smaller portion of the drum may also have a hole extending diametrically through it. To prevent the cable from slipping, the drum is provided with a clamp Z0, adapted to clamp the cable against the head of the drum. This clamp consists of a simple metal strap secured to the drum by screws, so that the bite or friction of the clamp may be properly adjusted'so that it will normally prevent the slipping of the cable and yet, in case of accident or the sudden dropping of the lamp, will permit the cable to slip through the clamp slowly and thus prevent a sudden shock, which might otherwise break the hanger from its fastenings or break the circuit.

The hanger comprises two drums D and two cables 0, as will be seen from the drawings; but as they are both alike and similarly lettered the above description suffices for both.

In the modification illustrated in Figs. 8, 9, and 10 the construction is the same, with the exception that the locking device F F F F is of the ordinary friction-strap-brake type instead of the notched or toothed type shown in Figs. 1 to 7. The frame B B is also made of a slightly-differentshape, and one end of the friction-band locking-device part F F is also preferably extended around the lower half of the pulley and attached to the movable arm 19 b ,that carries the bearing 1) b of the drumshaft. One end of the band F F is attached to the cross-bar b b, while the other end of this band is attached to the cross-bar b b on the arms b 11 In this modified form also the two bearing-carrying arms b b b b are shown as being fixed together or made in one piece, with the cross or connecting bar 11 19 extending between them, and to which the springs Z Z Z Z are secured.

The operation is as follows: Normally the locking-device part F engages the locking-device part F and holds the drum D from rotating,and the lamp is supported in any position desired. To lower the lamp, the operator pulls on the hand-rope R, thus rotating the hand-rope pulleyP, until its spur or tooth p is thrown into engagement with the spur or tooth f on the wheel F, which is fast to the drum-shaft H, so that then the strain exerted by the operator on the hand-rope will swing or move the drum-shaft until the locking-device part F disen gages its fellow F, thus permitting the drum I) and its shaft to rotate, and of course throwing the weight of'the lamp onto the hand-rope, so that the operator may lower the lamp by letting the drum-shaft D turn and the hand-rope wind up on its pulley P. During this operation, and also during the opposite operation of raising the lamp,the locking-device part F is held out of engagement with the locking-device part Fbecause the springs Z Z are at this time compressed by double the weight of the 1ampthat is to say, by the weight of the lamp on the cables 0 O and by the equivalent strain or force exerted by the operator on the hand-rope R to balance or sustain the lamp. To again support the lamp from the hanger after it has been lowered or raised, all that isnecessary is for the operator to give a quick slack to the handrope, which will of course momentarily relieve the drum-shaft and springs Z Z from the weight and strain of the lamp and hand-rope combined, thus causing the springs Z Z to throw the locking-device part F into engagement with its fellowF, and thus stopping the further rotation ofIthe drum D and its shaft H. The stoppage, however, will not be so sudden as to do injury,because of the cushion or yielding action between the two parts of the looking devices F F. In case the hand-rope should break'or the operator should accidentally let goof it in lowering or raising the lamp, the operation would be the same and the rotation of the drum D automatically checked. The parts of the locking device F F may also be thrown into en gagement,without giving slack to the hand-rope, by swinging the hand-rope to one side, in the direction indicated by the arrow in Fig. 4, until the resultant line of force between the hand-rope and the lampcables 0 C, drawn through the pivot-point b", comes through or above the center of the shaft II, thus relieving the springs Z Zfrom the strain and weight and permitting them to throw the locking-device part F into engagement with the locking-device part F. During the lowering or raising of the lamp by rotating the drums D (Z D cZ and their shaft H the cables 0 C unwind from or wind up on the drum D d at both ends thereof. Ordinarily it is not necessary to employ a weight to keep the unwound slack c of the cable taut or in position, and I have therefore not shown a weight in the drawings attached to the slack portion 0 of the cable. The end 0 of the cable is fixed in position to the frame, hanger, or ceiling by an insulating-clamp I. It will be seen that the drums D are rotated, when the lamp descends, by the weight of the lamp,and when the lamp ascends by the power of the hand exerted thereon through the medium of the hand-rope and pulley and the clutch p f.

I claim 1. In an electric-lamp hanger, the combination with a continuous cable extending in one continuous piece or wire from the main or external circuit to the lamp, of a stationary frame, a rotating drum mounted upon said frame and about which said cable is coiled in opposite directions, said cable having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position so that when the drum is rotated said cable will unwind from the drum or wind up on the drum at the end attached to the lamp and also at the end or slack part between the drum and the point where the cable is fixed to the frame or con-- nected to the main or external circuit, whereby the lamp is adapted to be raised or lowered while at the same time preserving the continuity of the circuit, substantially as specilied.

2. In an electric-lamp hanger, the combination with a rotating drum of a stationary frame upon which said drum is mounted a continuous flexible conductor or cable extendin g from the external circuit to the lamp, said cable being wound about the drum and havin ga slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position to enable the drum to rotate and permit the lamp to be lowered or raised, substantially as specified.

3. In an electric-lamp hanger, the combination with a continuous conductor-cable extending in one continuous piece or wire from the main or external circuit to the lamp, of a stationar frame a rotating drum mounted upon said frame about which said cable is coiled in opposite directions, said cable having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position so that when the drum is rotated said cable will unwind from the drum or wind up on the drum at the end or slack part between the drum and the point where the cable is fixed to the frame or connected to the main or external circuit, said drum being of two diameters a large size for the lampconnected end of the cable to wind upon and a smaller size for the slack part of the cable to wind upon, whereby the lamp is adapted to be raised and lowered while at the same time preserving the continuity of the circuit, substantially as specified.

4. In an electric-lamp hanger, the combination with a rotating drum of a stationary frame upon which said drum is mounted a continuous flexible conductor or cable extendin g from the external circuit to the lamp, said cable being wound about the drum and having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position to enable the drum to rotate and permit the lamp to be lowered or raised, said drum being of two diameters, a large size for the lamp-connected end of the cable to wind upon, and a smaller size for the slack part of the cable to wind upon, substantially as specified.

5. In an electric-lamp hanger, the combination with a stationary supporting-frame provided with a cooperating part of a locking device mounted thereon, of a bodily-movable rotating lamp-supporting drum mounted on said frame and provided with a cooperatin g part of a loekin g device adapted to be engaged with and disengaged from said corresponding cooperating part of a locking device on the frame by the bodily movement of the drum in respect to the frame, substantially as specilied.

b. 111 an electric-lamp hanger, the combination with a stationary supporting-frame provided with a cooperating part of a locking device mounted thereon, of a bodily-movable rotating lamp-supporting drum mounted on said frame and provided with a cooperating part of a locking device adapted to be engaged with and disengaged from said corresponding cooperating part of a locking device on the frame by the bodily movement of the drum in respect to the frame, one of the parts of said lockin g device having a spring or yielding action to prevent injury by too suddenly stopping the rotation of the lamp-supporting drum, substantially as specified.

7. In an electric-lamp hanger, the combination with a supporting-frame provided with a cooperating part of a locking device, of a bodilymovable rotating lampsupporting drum mounted on said frame and provided with a cooperating part of a locking device adapted to be engaged with and disengaged from said corresponding coopcratin g part of a locking device on the frame by the bodily movement of the drum, and a hand-rope for raising and lowering the lamp, substantially as specified.

8. In an electric-lamp hanger, the combination with a supporting-frame provided with a cooperating part of a locking device, of a bodily-movable rotating lamp-supporting drum mounted 011 said frame and provided with a cooperating part of a locking device adapted to be engaged with and disengaged from said corresponding eooperatin g part of a locking device on the frame by the bodily movement of the drum, a hand-rope and a rotatinghand-rope pulley mounted on the shaft of the drum and provided with a spring and clutch for lockin g the same to the drum-shaft, substantially as specified.

9. In an electric-lamp hanger, the combination with a supporting-frame provided with a cooperating part of a locking device, of a bodilymovable rotating lamp supporting drum mounted on said frame and provided with a cooperating part of a locking device adapted to be engaged with and disengaged from said corresponding cooperatin g part of a locking device on the frame by the bodily movement of the drum, one of the parts of said locking device having a spring or yielding action to prevent injury by too suddenly stopping the rotation of the lamp-supporting drum, and ahand-rope connected to the drum, substantially as specified.

10. 111 an electric-lamp hanger, the combination with a supporting-frame of a rotating lamp-supporting drum and its shaft, a con tinuousflexible lamp-supportin g conductor or cable extending from the external circuit to the lamp, said cable being wound about the drum and having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position, and a locking device for locking the drum to the frame, substantially as specified.

11. In an electric-lamp hanger, the combination with a supporting-frame of a rotating lamp-supporting drum and its shaft, a continuous flexible lamp-supporting conductor or cable extending from the external circuit to the lamp, said cable being-wound about the drum and having a slack portion exten ding'from the drum to the point Where the cable is connected to the external circuit or fixed in position, a locking device for locking the drum to the frame, and the hand-rope and hand-rope pulley, substantially as specified.

12. In an electric-lamp hanger, the combination with a supporting-frame of a rotating lamp-supporting drum and its shaft, a continuous flexible lamp-supporting conductor or cable extending from the external circuit to the lamp, said cable being wound about the drum and having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position, a locking device for locking the drum to the frame, the hand-rope and hand-rope pulley, and a spring for automatically rotating the hand-rope pulley and winding up the hand-rope, substantially as specified.

13. In an electric-lamp hanger, the combination with a supporting-frame of a bodilymovable lamp-supportin g drum and its shaft, a continuous flexible lamp-supporting conductor or cable extending from the external circuit to the lamp, said cable being wound about the drum and having a slack portion extending from the drum'to the point where the cable is connected to the external circuit or fixed in position, a cooperating part of a locking device on the frame, and an opposing cooperating part of a lockin g device connected to the shaft of the drum substantially as specified.

14. In an electric-lamp hanger, the combination with a supporting-frame of a bodilymovable lamp-supporting drum and its shaft, a continuous flexible lamp-supporting eonductor or cable extending from the external circuit to the lamp, said cable being wound about the drum and having aslack portion extending from the drum to the point Where the cable is connected to the external circuit or fixed in position, a cooperating part of a locking device on the frame, and an opposing cooperating part of a locking device connected to the shaft of the drum, one of said cooperating partsof alocking device having a spring 'or yielding action, substantially as specified.

15. In an electric-lamp hanger, the combination with the supporting-frame of a bodilynlovable lamp-supportin g drum and its shaft,

the cable is connected to the external circuit or fixed in position, a cooperating partof a locking device on the frame, an opposing cooperating part of a locking device connected to the shaft of the drum, a hand-rope and a hand-rope pulley, substantially as specified.

16. In an electric-lamp hanger, the combination with the supporting-frame of a bodilymovable lamp-supporting drum and its shaft, a continuous flexible lamp-supporting conductor or cable extending from the external circuit to the lamp, said cable being wound about the drum and having a slack portion extending from the drum to the point where the cable is connected to the external circuit or fixed in position, a cooperating part of a locking device on the frame, and an opposing cooperating part of a locking device connected to the shaft of the drum, one of said cooperating parts of alockin g device having a spring or yielding action, a hand-rope and a handrope pulley, substantially as specified.

17. In an electric-lamp hanger, the combi nation of a stationary supporting-frame, a retatable lamp-supporting drum, a locking device between the frame and the drum, and conductor-cables having a fixed connection with the external circuit wound on the drum, substantially as specified.

18. In an electric-lamp hanger, the'combination of a stationary supporting-frame, a rotatable lamp-supporting drum, a hand-rope to rotate the drum, means for locking the drum to the frame, and conductor-cables having a fixed connection with the external circuit wound on the drum, substantially as specified.

19. In an electric-lamp hanger, the combination of a stationary supporting-frame, a rotatable lamp-supporting drum, a locking device between the drum and the frame, means for operating the locking device and rotating the drum, and conductor-cables having a fixed connection with the vexternal circuit wound upon the drum, substantially as specified.

. 20. In an electric-lamp hanger, the combination of a stationary supporting-frame, a rotatable lamp supporting drum normally locked in the frame, conductor-cables wound upon the drum, one end of each conductor be- IIO ing connected to said external circuit and the 1 other to the lamp, and means for adjusting the rotated position of the drum without atfecting the continuity of the circuit through the lamp and hanger, substantially as specified.

21. The combination of a supporting-frame, a rotatable lamp-supporting drum normally locked to the frame, and journals for the drum which allow it sufficient transverse or diametrical motion to lock or unlock it from the frame, substantially as specified.

22. The combination of a supporting-frame, spring-supported and pivotally-swung journals in the frame, and a rotatable lamp-supporting drum normally locked to the frame, substantially as specified.

23. In an electric-lamp hanger, the combination of a supporting-frame, spring-suspended and movable journals in the frame, a rotatable lamp-supporting drum resting in the journals and normally locked in the frame, and means for rotating the drum and lockin g it to the frame, substantially as specified.

24. In an electric-lamp hanger, the combination of a supporting frame, springsuspended movable journals in the frame, a retatable lamp-supporting drum resting in the journals and normally locked in the frame, and means for moving the drum bodily for the purpose of locking or unlocking it from the frame, substantially as specified.

25. In an electric-lamp hanger, the combination of a supporting-frame, a rotatable 1am p-snpportin g drum normally locked in the frame, journals for the drum and means for moving the drum transversely, as and for the purpose substantially as specified.

20. In an electric-lamp hanger, the combination of a supporting-frame, a rotatable lamp-supportin g drum normally locked to the frame, journals for the drum, means for moving the drum diametrically in the journals for the purpose of locking it to the frame and for rotating the drum on its axis, substantially as specified.

27. In an electric-lamp hanger, the comb'ination of a supporting frame, a rotatable lamp-supporting drum normally looked in the frame, journals for the drum, means formoving the drum diametrically for the purpose of locking or unlocking it from the frame, and a hand-rope for rotating the drum on its axis, substantially as specified.

28. In an electric-lamp hanger, the combi nation of a stationary supporting-frame, rotatable lamp supporting drums normally locked in the frame, movable journals for the drums and means for limiting and adjusting the motion of the journals, substantially as specified.

29. In an electric-lamp hanger, the combination of a stationary supporting frame, a rotatable lamp-supporting drum normally locked to the frame, and conductor-cables wound upon the drum, one end of each cable being connected to the external circuit and Elie other to the lamp, substantially as speci- 30. In an electric-lamp hanger, the combination with a supporting-frame of a rotating 1amp-supporting drum, a locking device normally locking the drum to the frame and consisting of two cooperating parts, one connected to the frame and one connected to the drum adapted to engage each other, one of said cooperating parts having a spring in its connection with the part to which it is conneeted to permit a limited rotation of the drum after the two cooperating parts of said locking device engage each other, so as to prevent injury to or jerking of the lamp by the too sudden stoppage of its descent, substantially as specified.

31. In an electric-lamp hanger, the combination of a supporting frame, a rotatable lamp-supporting drum, a yielding lock normally locking the drum in the frame, and a spring between the lock and the frame to permit a limited rotation of the drum after the lock acts, and a hand-rope for raising the lamp, as and for the purpose substantially as specified.

32. In an electric-lam p hanger, the combination with a rotating drum and its shaft, of acontinuous conductor-cable wound upon the drum and extending from the external. circuit to the lamp, and a hand-rope for rotating the drum to raise and lower the lamp.

1-33. In an electrie-lamp hanger, the combination with a rotating drum and its shaft, of a continuous conductor-cable wound upon the drum and extending from the external circuit to the lamp, a hand-rope for rotating the drum to raise and lower the lamp, and a lockin g device for locking the drum from rotating, substantially as specified.

iii. In an electric-lamp hanger, the combination with a rotating drum and its shaft, of a continuous conduetor-eable wound upon the drum and extending from the external circuit to the lamp, a hand-rope for rotating the drum to raise and lower the lamp, and a pulley for the hand-rope, substantially as specilied.

35. In an electric-lamp hanger, the combination with a rotating drum and its shaft, of a continuous conductor-cable extending from the external circuit to the lamp, a hand-rope for rotating the drum to raise and lower the lamps, a pulley for the hand-rope,and a spring and clutch for the hand-rope pulley, substantially as specified.

\VILLIAM \VES'ION.

\Vi tnesses:

II. M. MUNDAY, JOHN \V. MUNDAY. 

